Under what conditions can a veterinarian issue up to three 30-day prescriptions of a Schedule II drug?

A veterinarian can issue up to three 30-day prescriptions of a Schedule II drug when there are written instructions for fill dates. This requirement ensures proper monitoring and management of the medication, allowing the veterinarian to provide ongoing care while adhering to regulations concerning controlled substances. This protocol helps prevent abuse or misuse of the medication by ensuring that prescriptions are filled according to a predetermined schedule, maintaining the integrity of the treatment plan for the patient.

In this context, the other options do not encompass the regulatory framework guiding the prescription of controlled substances. Conditions like having a chronic illness, being terminally ill, or being under one year of age are not specific factors that validate the issuance of multiple prescriptions for Schedule II drugs. The focus is on ensuring safe prescribing practices and reinforcing the need for careful oversight in managing potentially dangerous medications.